/*
 *  Copyright (c) 2001-2007, Jean Tessier
 *  All rights reserved.
 *  
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *  
 *      * Redistributions of source code must retain the above copyright
 *        notice, this list of conditions and the following disclaimer.
 *  
 *      * Redistributions in binary form must reproduce the above copyright
 *        notice, this list of conditions and the following disclaimer in the
 *        documentation and/or other materials provided with the distribution.
 *  
 *      * Neither the name of Jean Tessier nor the names of his contributors
 *        may be used to endorse or promote products derived from this software
 *        without specific prior written permission.
 *  
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR
 *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 *  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.jeantessier.dependencyfinder.cli;

import java.io.*;
import java.util.*;

import com.jeantessier.classreader.*;
import com.jeantessier.commandline.*;

public class ClassFinder extends Command {
    public ClassFinder() throws CommandLineException {
        super("ClassFinder");
    }

    protected void populateCommandLineSwitches() {
        super.populateCommandLineSwitches();

        getCommandLine().addMultipleValuesSwitch("includes", DEFAULT_INCLUDES);
        getCommandLine().addMultipleValuesSwitch("excludes");
    }

    public void showSpecificUsage(PrintStream out) {
        out.println();
        out.println("If no files are specified, it processes the current directory.");
        out.println();
    }

    public void doProcessing() throws Exception {
        List<String> parameters = getCommandLine().getParameters();
        if (parameters.size() == 0) {
            parameters.add(".");
        }

        ClassMatcher matcher = new ClassMatcher(getCommandLine().getMultipleSwitch("includes"), getCommandLine().getMultipleSwitch("excludes"));

        ClassfileLoader loader = new TransientClassfileLoader();
        loader.addLoadListener(matcher);
        loader.addLoadListener(getVerboseListener());
        loader.load(parameters);

        for (Map.Entry<String, List<String>> entry : matcher.getResults().entrySet())
        {
            out.print(entry.getKey());
            out.print(": ");

            Iterator i = entry.getValue().iterator();
            while (i.hasNext()) {
                out.print(i.next());
                if (i.hasNext()) {
                    out.print(", ");
                }
            }

            out.println();
        }
    }

    public static void main(String[] args) throws Exception {
        new ClassFinder().run(args);
    }
}
